ECN

(1) (Electronic Communications Network) A computerized, private financial trading system. Terra Nova Trading (www.lightspeed.com) and Instinet (www.instinet.com) are examples.

(2) (Engineering Change Notice) A document that identifies a change to a product. It includes the description of the change, reason behind it, departments affected, approval and time schedule.

ECN

ECN (1)

Electronic Communications Network. Defined under Rule 11Ac1- 1(a)(8) under the U.S. Securities Exchange Act of 1934.

ECN (2)

See: Emerging company marketplace

Electronic Communication Network

A computer system that facilitates over-the-counter trading as well as exchange trading. The electronic communication network sends buy or sell orders to the appropriate specialist on the floor of a stock exchange, bypassing the floor broker. A company running an ECN charges a fee for its services.

ECN

See electronic communications network.

Electronic communications network (ECN).

An ECN is an alternative securities trading system that collects, displays, and executes orders electronically without a middleman, such as a specialist or market maker.

Trading on an ECN allows institutional and individual investors to buy and sell anonymously. Further, ECNs facilitate extended, or after-hours, trading.

ECN trade execution can be faster and less expensive than trades handled through screen-based or traditional markets, though the volume is sometimes thin.

However, some ECNs have been approved for official stock exchange status, expanding the number of stocks that can be traded on their systems.

ECN

Acronym	Definition
ECN➣Explicit Congestion Notification
ECN➣Economics
ECN➣Engineering Computer Network
ECN➣Electronic Component News (electronics industry periodical)
ECN➣Electronic Communications Network (stock market)
ECN➣Energieonderzoek Centrum Nederland
ECN➣Elite Casting Network (est. 1998)
ECN➣Épreuves Classantes Nationales (French educational testing)
ECN➣European Competition Network (EU)
ECN➣Examen Classant National (French: National Review Ranking)
ECN➣Environmental Change Network (UK)
ECN➣Exhibit City News (convention industry)
ECN➣Electronic Communications Network
ECN➣Electronic Change Notification
ECN➣Environmental Change Network
ECN➣Engineering Change Notice
ECN➣Electoral Commission of Namibia (Namibia)
ECN➣Energy Research Center of the Netherlands (Petten, The Netherlands)
ECN➣Ecole Centrale de Nantes (French College of Engineering)
ECN➣European Counter Network
ECN➣Engineering Change Notification
ECN➣Emergency Communications Network (telephone emergency services)
ECN➣Encoding Control Notation
ECN➣Enhanced Capital Note
ECN➣Electronic Commerce Network
ECN➣Electronic Crossing Network
ECN➣Extended Choice Network (enhancement of NHS Choose & Book system)
ECN➣Educational Computing Network
ECN➣Environmental Capital Network
ECN➣Early Childhood Network
ECN➣Epoxy Cresol Novolac
ECN➣Equipment Control Number
ECN➣Eastman Color Negative (film processing)
ECN➣El Cajon National (sports; El Cajon, CA)
ECN➣Electronic Change Notice
ECN➣Enteral Clinical Nutrition
ECN➣EcoNews Africa
ECN➣Eventchannelnetwork (Object Oriented, Real-Time Asynchronous Communication Infrastructure for Embedded Systems)
ECN➣Minimum Essential Emergency Communications Network (US DoD)
ECN➣Electron Configuration Notation
ECN➣Executive Consultants Network
ECN➣Employment Change Notice
ECN➣Executive Control Node (US FEMA)
ECN➣Evolving Clustering Network
ECN➣Lefkosa, Cyprus (Turkish Part) - Ercan Airport (Airport Code)
ECN➣Equipage Category Number